Module: ActiveRecord::FinderMethods

Defined in:
lib/select-column/finder_methods.rb

Instance Method Summary collapse

Instance Method Details

#select_column(column_select = nil) ⇒ Object 



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# File 'lib/select-column/finder_methods.rb', line 4

def select_column(column_select=nil)
  self.select_values = if !column_select.nil?
    [ column_select ]
  elsif !select_values.nil? && !select_values.empty?
    [ select_values.first ]
  else
    [ :id ]
  end

  column = self.klass.columns_hash[select_values.first.to_s]
  self.klass.connection.select_values(self.to_sql).map { |value| column.type_cast(value) }
end